Home / 10,917.40-15,064.98-6,200.80

Finding the Fourth Proportional to 10,917.40, 15,064.98 and 6,200.80

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Solution

The fourth proportional to 10,917.40, 15,064.98 and 6,200.80 is: 8,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.40 : 15,064.98 = 6,200.80 : x
  2. Step 2: Convert to fraction form
    10,917.40/15,064.98 = 6,200.80/x
  3. Step 3: Cross multiply
    10,917.40x = 15,064.98 × 6,200.80
  4. Step 4: Simplify right side
    10,917.40x = 93,414,927.98
  5. Step 5: Solve for x
    x = 93,414,927.98/10,917.40
  6. Step 6: Final answer
    x = 8,556.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.